| Mechanism of zinc damaging to blast furnace tuyere refractory | |
| Alternative Title | Mechanism of zinc damaging to blast furnace tuyere refractory |
| Yang Xuefeng1; Chu Mansheng3; Shen Fengman3; Zhang Zhuming2 | |
| 2009 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Volume | 22Issue:6Pages:454-460 |
| Abstract | The phenomena of tuyere upward-warp have been found at No.6 blast furnace in Kunming Steel Company China after its blow-in, which has made a great impact on the practical production of the furnace. Thus, a number of efforts have been made to elucidate the mechanism of this phenomenon. The results of investigation and tests revealed that the enrichment and expansion of zinc in the tuyere bricks is the main factor leading to the tuyere upward-warp. The eroding behavior of zinc is that the inner structure of the tuyere bricks turns from dense to loose with entering, enriching and expanding of zinc, which forms spot-like-->stripe-like-->ditch-like-->vein-like-->tumor-like eroding passage. Additionally, it is found that the sequence of deleterious elements entering the tuyere refractory is K, Na, Zn and Pb, respectively. Finally, the phenomena and process of zinc crystallization and growth in the refractory have been clearly observed and recorded during this investigation. |
| Other Abstract | The phenomena of tuyere upward-warp have been found at No.6 blast furnace in Kunming Steel Company China after its blow-in, which has made a great impact on the practical production of the furnace. Thus, a number of efforts have been made to elucidate the mechanism of this phenomenon. The results of investigation and tests revealed that the enrichment and expansion of zinc in the tuyere bricks is the main factor leading to the tuyere upward-warp. The eroding behavior of zinc is that the inner structure of the tuyere bricks turns from dense to loose with entering, enriching and expanding of zinc, which forms spot-like→stripe-like→ditch-like→vein-like→tumor-like eroding passage. Additionally, it is found that the sequence of deleterious elements entering the tuyere refractory is K, Na, Zn and Pb, respectively. Finally, the phenomena and process of zinc crystallization and growth in the refractory have been clearly observed and recorded during this investigation. |
| Keyword | Blast furnace Tuyere Refractory Zinc Erosion Deleterious elements |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [Program for New Century Excellent Talents in University] |
| CSCD ID | CSCD:3791341 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/158110 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.Cent South University, Sch Minerals Proc & Bioengn, Changsha 410083, Hunan, Peoples R China 2.Kunming Iron & Steel Ltd Co, Ctr Technology, Kunming 650302, Peoples R China 3.中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Yang Xuefeng,Chu Mansheng,Shen Fengman,et al. Mechanism of zinc damaging to blast furnace tuyere refractory[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2009,22(6):454-460. |
| APA | Yang Xuefeng,Chu Mansheng,Shen Fengman,&Zhang Zhuming.(2009).Mechanism of zinc damaging to blast furnace tuyere refractory.ACTA METALLURGICA SINICA-ENGLISH LETTERS,22(6),454-460. |
| MLA | Yang Xuefeng,et al."Mechanism of zinc damaging to blast furnace tuyere refractory".ACTA METALLURGICA SINICA-ENGLISH LETTERS 22.6(2009):454-460. |
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